After introducing a bit-plane quantum representation for a multi-image, we present a novel way to encrypt/decrypt multiple images using a quantum computer. Our encryption scheme is based on a two-stage scrambling of the images and of the bit planes on one hand and of the pixel positions on the other hand, each time using quantum baker maps. The resulting quantum multi-image is then diffused with controlled CNOT gates using a sine chaotification of a two-dimensional H\'enon map as well as Chebyshev polynomials. The decryption is processed by operating all the inverse quantum gates in the reverse order.
翻译:在引入多图像的位平面量子表示后,我们提出了一种利用量子计算机加密/解密多幅图像的新方法。我们的加密方案分两个阶段进行:一方面对图像及其位平面进行置乱,另一方面对像素位置进行置乱,每次均采用量子Baker映射。随后,通过使用二维Hénon映射的正弦混沌化及Chebyshev多项式,利用受控CNOT门对得到的量子多图像进行扩散。解密过程通过逆向依次操作所有逆量子门完成。